When priceless artifacts begin vanishing from a Turkish estate, Nancy Drew must uncover the thief before they can plunder a lost city hidden beneath the property. Nancy accompanies her father, Carson Drew, to Turkey where he is set to finalize the sale of an ancestral estate. Her investigation into the disappearing artifacts quickly focuses on Harland Severino, a wealthy and determined potential buyer. Nancy's sleuthing leads her to discover an ancient, forgotten city beneath the estate, a treasure trove of priceless artifacts that grave robbers are willing to kill for.

This installment in the Nancy Drew series appears to follow the established formula of mystery and adventure, likely appealing to its core young adult readership. The plot centers on artifact theft and the discovery of ancient ruins, suggesting a focus on puzzle-solving and exploration typical of the franchise. The narrative framework is expected to be straightforward, following Nancy's direct investigation and deductions. The publisher's description indicates a fast-paced plot with elements of danger and historical discovery.